Setting mechanism



C. L. LEE.

SETTING MECHANISM. ARPLICATION FILED RUG-5, 191s.

Patented Apr. 27, 1920.

81104211 rm Charles L. Lee a Eli/ 30L "UNITED STATES PATENT OFFICE.

CHARLES L. LEE, or BRI'DGEPORT, CONNECTICUT, ASSIGNOR TO THE NATIONAL CASH REGISTER COMPANY, or DAYTON, onro. Y

SETTING MECHANISM.

Specification of Letters Patent.

Patented Apr. 2'7, 1920.

Original application filed July 20, 1916, Serial No. 110,317. Divided and this application filed August 5, 1918. Serial No. 248,336.

To all whom it may concern:

Be it known that I, CHARLEs L. LEE, a citizen of the United States, residing at Bridgeport, in the county of-Fairfield and State of Connecticut, have invented certain new and useful Improvements in Setting Mechanism, of which I declare the following to be a full, clear, and exact description.

This invention relates to a device having duplicate groups of elements which may be set differentially, and means for manually setting the corresponding'elements of the two groups simultaneously.

This is a divisional application of the original application, filed July 20, 1916, Serial No. 110,317, and as a consequence reference is made to the original application to disclose the cooperative relation of the mechanism herein disclosed with the other elements of the mechanism illustrated in the original application. The mechanism herein, however, which is shown in combination with a cylinder having duplicate sets of rotatable type elements may be used in combination with various accounting elements and in various different machines and its application to the ticket issuing mechanism illustrated in the original application heretofore referred to is but one embodiment thereof and it is to be understood that this mechanism is susceptible of embodiment in various other forms of mechanism without departing from the scope of the present improvement. The primary object of the present improvement is to devise a simple and efficient mechanism which is easily operable to simultaneously set corresponding elements with one manually adjustable device, so that separate setting devices for each group of elements is not necessary.

With these and incidental objects in View, the invention consists in certain novel features of construction and combination of parts, the essential elements of which are set forth in the appended claims, and a preferred form of embodiment of which is hereinafter described with reference to the drawings which accompany and form part of the specification.

Of said drawings:

Figure 1 is a longitudinal section of the printing cylinder and the mechanism for setting the type carriers supported thereby.

Fig. 2 is a section through the cylinder on the line 2-2 of Fig. 1 and shows the mechanism for setting the type wheels and retaining them in position.

Fig. 3 is a detail of the type wheel setting knob. p

In the embodiment herein illustrated the settable elements are illustrated as type wheels carrying type for printing the date and type printing different price tickets, but it is to be understood that these settable elements may be any form of accounting elements or as type wheels may be provided with any desired printing characters.

The improved mechanism illustrated herein comprises a hollow cylinder 262, having four annular knurled feeding flanges 263 which are adapted to feed the printing medium between the roller 262 and any form of impression rolls or other device having a similar function. Journaled on the end plates 414 of the cylinder is a shaft 415 on which are rotatably mounted a set of type wheels 416 for printing a date on a printing medium. The shaft 415 also supports another set of type wheels 417 for printing on another printing medium or the sets of wheels 416 and 417 may be used to print on different portions of a printing medium of suflicient width to extend across the cylinder 262. Mounted on the shaft 415 are also type wheels 418 and 419 which are provided with characters to print different prices and are arranged adjacent to and cooperate with the sets of type wheels 416 and 417 respectively. The price type characters 418 and 419 are intended to be rotated manually or by means of an inserted element to position the type thereon to print any desired price. The datetype characters 416 and 417 are adjusted to print any desired date by operating the shaft 415. For this purpose the shaft is both rotatable and movable endwise and is provided with a notch 421 for each set of date wheels. These notches are squared to cooperate with the ends of pawls 422 attached. to the sides of the date wheels and are also rounded in such a way that endwise movement of the shaft will cam the pawls 422 out of engagement with the notches. In the drawings the shaft 415 is at its inner position with the notches 421 in position to engage the pawls 422 on the type wheels for printing the month, but by moving the shaft endwise the notches may be positioned to engage the pawls 422 on either of the type wheels for printing the days of themonth.

In order to operate the shaft 415 conveniently it has attached to its end a knurled button 424 and a collar 425 on which are impressed three series of digits representing the month and the unit and tens of days. Fastened to the end of the cylinder is a plate 426 on which is formed a pointer or index 427 cooperating with the digits on the collar 425 so that the operator may see at a glance which of the type carriers the shaft 7 is in position to operate. A spring operated plunger 428 cooperates with three peripheral grooves 430 in the shaft 415 to retain the shaft in any of its three positions.

When it is desired to change the date the shaft 415 is first moved endwise until' the proper series of digits is opposite the pointer 427 and the shaft is then turned to engage the shoulders of the notches 421 with the ends of the pawls 422 on the type wheels which are to be set. The rotation of the shaft is then continued in the same direction until the desired type is brought to printing position. The shaft may then be moved endwise to establish operating relationship between the notches 421 and any other pair of pawls 422 in case changing the date involves the setting of more than one of the type carriers.

Spring operated alining pawls 431 engage the teeth of ratchet wheels 4232 rigid with the date and type wheels to hold the wheels in position. The pawls are held against lateral displacement by a formed plate 433 having flanges 434 and 485 in which are slots (not shown) to receive the pawls.

While the form of mechanism, herein shownand described, is, admirably adapted to fulfil the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of emmovable endwise to establish operative rela V tionship between the notch and the desired pawl and rotatable to engage the pawl and thereby rotate the element.

2. In a machine of the class described,

the combination'of a set of rotatable ele-' ments, spring pressed pawls carried by the elements, and a shafthaving a notch common to said pawls,1said shaft being both rotatable and movableendwise, said notch having one side thereof substantially radial to said shaft center whereby when the'shaft is rotated said radial side engages a pawl and rotates its respective element, the ends of said notch being so formed that when the shaft is moved endwise to establish operative relation between the notch and another pawl, said ends cam the first pawl out of the notch.

3. In a machine of the class described, the combination of a set of rotatable elements, means carried by eachof saidelements whereby the elements may be differentially positioned, and a shaft, having a notch common to said means said shaft being both rotatable and movable endwise, said notch being so formed that when the shaft is rotated the notch cooperates with one of said means to rotate the respective, element and when the shaft is moved endwise to establish operative relation between the notch and another of said means, the preceding ineans is forced out of the notch.

In testimony whereof I afiix my signature.

CHARLES L. LEE. 

